We had a Honda 1000W for our 23ft TT. It would power lights, TV and VCR and recharge the batteries. It would run all day on a tank of fuel. Very quiet.
Once we added an Air Conditioner we upgrade to 2 2000i Hondas with the parallel kit. These together would run everything in the TT at the sametime. Again they are very fuel efficient and run up to 8 hours on a tank (actually 2 tanks) at mid-power like when using TV and Sat box plus recharging batteries. At full power will go about 6 hours.
As suggested above the 2000w will provide more flexibility to run power tools, microwave and hair dryer.
